This note collects the commands presented in class to compile a C program to binary and then disassemble it. It also shows you how to compile C code to x86 assembly, and x86 assembly code to binary. For the adventurous, it even gives step-by-step instructions on how to edit a binary executable directly. A simple program Start the class VM, open your favorite editor and save this code to program.c: #include <stdio.h> #include <stdbool.h> bool is_valid(int code) { return code == 42;

I'll try to improve this guide over time. The goal is to collect the essential knowledge about x86-64 assembly and examples of very common patterns (if, while, for, procedure calls) in BombLab. The registers We have plenty of registers inside the CPU; they can store 8 bytes each and they are called: %rax, %rbx, %rcx, %rdx (the "a, b, c, d") %rsi, %rdi (source index, destination index) %rsp, %rbp (stack pointer, base pointer) %r8, %r9, .., %r15 (just numbers here)